|**Accrued Warranties (Tables)**               | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                
|--------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|**Product Warranties Disclosures [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                               
|Schedule of Accrued Warranties                | Changes in our liability for standard product warranties, which is included as a component of the “Other accrued items” and “Other long-term liabilities” line items in our Condensed Consolidated Balance Sheet (Unaudited), during thetwo quarters ended December 28, 2018were as follows:(In millions)Balance at June 29, 2018$24Warranty provision for sales9Settlements(6)Balance at December 28, 2018$27
|                                             
|                                              |                                                                                                                                                                                                                                                                                                                                                                                                               
|                                              | (In millions)                                                                                                                                                                                                                                                                                                                                                                                                 
|Balance at June 29, 2018                      | $                                                                                                                                                                                                                                                                                                                                                                                                             
|Warranty provision for sales                  | 9                                                                                                                                                                                                                                                                                                                                                                                                             
|Settlements                                   | (6                                                                                                                                                                                                                                                                                                                                                                                                            
|Balance at December 28, 2018                  | $                                                                                                                                                                                                                                                                                                                                                                                                             

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